TW202445182A - Display device - Google Patents

Abstract

A display device is used to be contained in an exterior unit having at least a first color, and has a hide display mode and a normal display mode. The display device includes a display panel and an optical structure layer. The optical structure layer is disposed on the display panel and includes an AG (anti-Glare) layer and an AR (anti-reflection) layer disposed on the AG layer. The gloss difference between the optical structure layer and the exterior unit is less than 10 GU (gloss unit). Wherein, when in the hide display mode, the display device displays at least a second color, and the color difference between the at least a second color and the at least a first color is less than 3, and when in the normal display mode, the display panel displays an image information.

Description

Display device

The present application relates to a display device, and more specifically, the present application relates to a display device having an anti-reflection layer and an anti-glare layer.

In certain application scenarios of display devices, the mirror-reflected light of the display device may reduce the visibility of its screen, making it difficult for users to read information. Although some display devices have anti-reflection coatings and anti-glare coatings, there is still a small amount of reflected light and glare that cannot be completely eliminated, and therefore the display device cannot provide a viewing experience like paper.

Therefore, it is necessary to provide a novel display device to improve the above problems.

The present application provides a display device for being accommodated in an appearance piece, the appearance piece has at least one first color, and the display device has a hidden display state and a normal display state. The display device includes a display panel and an optical structure layer. The optical structure layer is disposed on the display panel and includes an anti-glare layer and an anti-reflection layer, the anti-reflection layer is disposed on the anti-glare layer, and the gloss difference between the optical structure layer and the appearance piece is less than 10 gloss units (Gloss Unit, hereinafter referred to as GU). Wherein, in the hidden display state, the display panel displays at least one second color, and the color difference between the second color and the first color is less than 3, and in the normal display state, the display panel displays an image information.

Other novel features of the present application will become more apparent from the following detailed description in conjunction with the accompanying drawings.

The following description provides different embodiments of the present application, which are intended to explain the technical content of the present application but are not intended to limit the scope of the present application. Features described in one embodiment can be applied to other embodiments by appropriate modification, replacement, combination or separation.

It should be noted that, in this specification, when a component is described as "including", "having", or "comprising" an element, it means that the component may include one or more elements and the component may include other elements at the same time, and does not mean that the component has only one of the elements, unless otherwise specified.

Furthermore, in this specification, ordinal numbers such as "first" or "second" are used only to distinguish multiple elements with the same name, and do not imply that there is a hierarchy, grade, execution order, or manufacturing order between the elements, unless otherwise specified. The ordinal numbers of the elements in the specification may be different from those in the patent application. For example, the "second" element in the specification may be the "first" element in the claim.

In this specification, unless otherwise stated, feature A "or" or "and/or" feature B means that only feature A exists, only feature B exists, or both feature A and feature B exist. Feature A "and" feature B means that both features A and B exist.

In addition, in this specification, terms such as "top", "up", "bottom", "front", "back", or "middle", as well as terms such as "above", "above", "on", "below", "below", or "between" are used to describe the relative positions of multiple elements, and the described relative positions may be interpreted to include their translation, rotation, or reflection.

In addition, terms such as “on,” “over,” “above,” “under,” or “below” described in the specification and claims are intended to mean that one element may not only directly contact other elements but may also indirectly contact another element.

In addition, terms such as "connected" in the specification and patent application mean that a component can be directly connected to other components, and can also be indirectly connected to other components. On the other hand, terms such as "electrically connected" and "coupled" in the specification and patent application mean that a component can be directly electrically connected to other components, and can also be indirectly electrically connected to other components.

In the specification and patent application, the terms "about", "approximately", "substantially", and "roughly" usually indicate that the difference between a value and a given value is within 10%, 5%, 3%, 2%, 1%, or 0.5% of the given value. The quantity given here is an approximate quantity, that is, in the absence of specific description of "about", "approximately", "substantially", and "roughly", the meaning of "about", "approximately", "substantially", and "roughly" can still be implied. In addition, the terms "range is from a first value to a second value", "range is between a first value and a second value" indicate that the range includes the first value, the second value, and other values therebetween.

In this specification, unless otherwise specified, the terms (including technical and scientific terms) used herein have the meanings generally known to those skilled in the art. It should be noted that, unless otherwise specified in the embodiments of this application, these terms (such as terms defined in general dictionaries) should have the same meanings as those of those skilled in the art, the background technology of this application, or the context of this specification, and should not be read in an ideal or overly formal manner.

Please refer to Figures 1A to 1C. Figure 1A shows a schematic diagram of a display device 100 in a hidden display state according to an embodiment of the present application, Figure 1B shows a schematic diagram of a display device 100 in a normal display state according to an embodiment of the present application, and Figure 1C shows a cross-sectional view of a display device 100 in an embodiment of the present application, wherein Figure 1C shows the viewing angle corresponding to the A-A' section line in Figures 1A and 1B. The display device 100 of the present application is used to be accommodated in an appearance member 200, and the display device 100 has a hidden display state and a normal display state.

The display device 100 may include a display panel 20 and an optical structure layer 30, and may optionally include a backlight module 10, wherein in the Y direction (e.g., the display direction of the display device 100), the display panel 20 is disposed on the backlight module 10, and the optical structure layer 30 is disposed on the display panel 20, that is, when the display device 100 is accommodated in the exterior member 200, the optical structure layer 30 may be located outside, and at least a portion of the surface of the optical structure layer 30 may be exposed to the exterior member 200. The display panel 20 and the optical structure layer 30 may be regarded as a display module, but are not limited thereto.

In one embodiment, the exterior member 200 may be, for example, a trim panel of an automobile interior, and the surface of the trim panel has a texture. In this embodiment, the display device 100 may be, for example, a dashboard of an automobile. As shown in FIG1A , when the display device 100 does not need to display information, the display device 100 may enter a hidden display state, and at this time, the display device 100 may display a screen substantially similar to the texture of the exterior member 200, so that visually the display device 100 may appear to be hidden in the trim panel. As shown in FIG1B , when the display device 100 needs to display information, the display device 100 may display image information (e.g., information content of the dashboard). In another embodiment, the exterior member 200 may be, for example, a wall, and the surface of the wall may have a texture. When the display device 100 does not need to display information, the display device 100 can enter a hidden display state, and at this time the display device 100 can display a screen substantially similar to the texture of the appearance member 200, so that the display device 100 can be visually hidden in the wall, and when the display device 100 needs to display information, the display device 100 can display image information. The types of the appearance member 200 described above are only examples and are not limiting.

To achieve the effect of the hidden display state, the appearance member 200 may have at least one first color. In the hidden display state, the display panel 20 displays at least one second color, wherein the color difference between the second color and the first color is set to be less than 3, and in the normal display state, the display panel 20 displays an image information. To explain in more detail, in the hidden display state, the chromaticity can be measured at any position on the display panel 20 and any position on the appearance member 200 by an instrument such as a spectrometer, and the color difference between the two measurement positions is set to be less than 3. In this way, in the hidden display state, the picture displayed by the display panel 20 can be substantially similar to the texture of the appearance member 200. Here, the definition of “color difference” may be, for example, the Euclidean distance in a device-independent color space.

In addition, the gloss difference between the optical structure layer 30 and the appearance member 200 is set to be less than 10GU. To explain in more detail, in the hidden display state, the gloss can be measured at any position on the display panel 20 and any position on the appearance member 200 by using an instrument such as a gloss meter, and the gloss difference between the two measurement positions can be less than 10GU. In this way, in the hidden display state, the image displayed by the display panel 20 can substantially have a similar gloss to the texture of the appearance member 200, and can be more similar visually.

In addition, as shown in FIG. 1C , in one embodiment, the optical structure layer 30 may have a surface 30a, and the appearance component 200 may have a surface 200a. The surface 30a of the optical structure layer 30 and the surface 200a of the appearance component 200 may be substantially located on the same plane, thereby making the hidden display state of the display device 100 more obvious, and the present invention is not limited thereto.

Furthermore, in one embodiment, when the display device 100 has a backlight module 10, the backlight module 10 may be, for example, a local dimming backlight module, so that the backlight module 10 can provide different brightness for different areas of the display panel 20, so that the hidden display state of the display device 100 can be closer to the texture of the appearance element 200, and is not limited thereto.

Next, the structure of the display device 100 is described. FIG2A is a schematic diagram showing the structure of the display device 100 according to an embodiment of the present application, and please refer to FIG1A to FIG1C at the same time.

As shown in FIG. 2A , the electronic device 100 includes a backlight module 10, a display panel 20, and an optical structure layer 30, wherein the optical structure layer 30 includes a protective layer 31, an anti-glare layer 32, and an anti-reflection layer 33. In the Y direction, the protective layer 31 is disposed on the display panel 20, the anti-glare layer 32 is disposed on the protective layer 31, and the anti-reflection layer 33 is disposed on the anti-glare layer 32. In this embodiment, the protective layer 31 may be, for example, a glass cover plate, but is not limited thereto. By properly matching the display panel 20, the protective layer 31, the anti-glare layer 32, and the anti-reflection layer 33, the display device 100 may provide an effect like a paper display, or may significantly reduce reflected light and glare.

In one embodiment, the anti-glare layer 32 and the glass cover (protective layer 31) can form an anti-glare glass, wherein the gloss of the anti-glare glass can be between 10 and 50GU, that is, 10GU≦the gloss of the anti-glare glass≦50GU, and is not limited thereto. In one embodiment, the transmittance of the anti-glare glass can be greater than or equal to 90%, that is, 90%≦the transmittance of the anti-glare glass, and is not limited thereto.

In one embodiment, the glass cover (protective layer 31), the anti-glare layer 32 and the anti-reflection layer 33 may form an optical structure layer 30, whose gloss may be between 4 and 35GU, that is, 4GU≦gloss of the optical structure layer 30≦35GU. In one embodiment, the gloss of the optical structure layer 30 may be between 4 and 30GU, that is, 4GU≦gloss of the optical structure layer 30≦30GU. In one embodiment, the gloss of the optical structure layer 30 may be between 4 and 20GU, that is, 4GU≦gloss of the optical structure layer 30≦20GU. The present application is not limited thereto. In addition, in one embodiment, the transmittance of the optical structure layer 30 may be between 70% and 95%, that is, 70%≦the transmittance of the optical structure layer 30≦95%. In addition, in one embodiment, the reflectivity of the optical structure layer 30 may be less than or equal to 6%, that is, 6%≦the reflectivity of the optical structure layer 30. In one embodiment, the reflectivity of the specular component included (SCI) of the optical structure layer 30 may be between 3% and 6%, that is, 3%≦the SCI reflectivity of the optical structure layer 30≦6%. In one embodiment, the reflectivity of the optical structure layer 30 including the mirror regular reflected light may be between 4% and 6%, that is, 4%≦SCI reflectivity of the optical structure layer 30≦6%. The present application is not limited thereto.

In one embodiment, the display panel 20 and the optical structure layer 30 may form a display module, whose gloss may be less than or equal to 10GU, that is, 10GU≧the gloss of the display module, for example, 5GU. In one embodiment, the SCI reflectivity of the display module may be less than or equal to 3%, that is, 3%≧the SCI reflectivity of the display module. In one embodiment, the reflectivity of the specular component excluded (SCE) of the display module may be greater than or equal to 0.6 times its SCI reflectivity, that is, the SCE reflectivity of the display module≧0.6*the SCI reflectivity of the display module. Thereby, the reflected light of the display device 100 may be reduced, thereby improving the visual quality.

In one embodiment, the display device 100 may be a bendable or flexible electronic device, and may be a non-self-luminous type or a self-luminous type. The display device 100 may include a light-emitting unit, such as an organic light emitting diode (OLED), a sub-millimeter light emitting diode (mini LED), a micro LED, or a quantum dot light emitting diode (quantum dot LED), but not limited thereto. The display technology of the display module may adopt liquid crystal display technology (LCD), OLED display technology, miniLED display technology, MicroLED display technology, cholesterol liquid crystal display technology (ChlLCD) or electrophoretic display technology (EPD) and the like. According to the display technology type, the display device 100 may or may not have the backlight module 10 , and is not limited thereto.

FIG2B is a schematic diagram showing the structure of a display device 100 according to an embodiment of the present application, and please refer to FIG1 to FIG2A at the same time. The embodiment of FIG2B is generally applicable to the description of the embodiment of FIG2A, so the following mainly describes the different features.

As shown in FIG. 2B , the protection layer 31 of the optical structure layer 30 may be, for example, a cover film, but is not limited thereto.

In one embodiment, the anti-glare layer 32 and the cover film (protective layer 31) may form an anti-glare film, wherein the glossiness of the anti-glare film may be between 10 and 50 GU, that is, 10 GU≦glossiness of the anti-glare film≦50 GU, and is not limited thereto. In one embodiment, the transmittance of the anti-glare film may be greater than or equal to 90 percent (%), that is, 90%≦transmittance of the anti-glare film, and is not limited thereto.

In the embodiment of FIG2B , the gloss, transmittance, reflectivity, and reflectivity of the optical structure layer 30 including the reflectivity of the mirror regular reflection light can be applied to the description of the embodiment of FIG2A . In addition, the display panel 20 and the optical structure layer 30 with the covering film (protective layer 31) can form a display module, and the gloss, SCI reflectivity, or SCE reflectivity of the display module can be applied to the description of the embodiment of FIG2A .

FIG2C is a schematic diagram showing the structure of a display device 100 according to an embodiment of the present application, and please refer to FIG1A to FIG2B at the same time. The description of the embodiment of FIG2C is generally applicable to the description of the embodiment of FIG2A, so the following mainly describes the different features.

As shown in FIG. 2C , the protective layer 31 of the optical structure layer 30 may be, for example, a polarizer, but is not limited thereto.

In one embodiment, the anti-glare layer 32 and the polarizer (protective layer 31) can form an anti-glare polarizer, wherein the gloss of the anti-glare polarizer can be between 10 and 50 GU, that is, 10 GU≦gloss of the anti-glare polarizer≦50 GU, and is not limited thereto. In one embodiment, the transmittance of the anti-glare polarizer can be greater than or between 45 and 60%, that is, 45%≦transmittance of the anti-glare polarizer≦60%, and is not limited thereto.

Thereby, the structure of the optical structure layer 30 can be understood.

Next, the details of the protective layer 31 and the anti-glare layer 32 are described. Figures 3A and 3B are schematic diagrams of the protective layer 31 and the anti-glare layer 32 of an embodiment of the present application, respectively, and please refer to Figures 1A to 2C at the same time. Figures 3A and 3B can be used to illustrate the details of the protective layer 31 and the anti-glare layer 32 in the form of a glass cover to form an anti-glare glass.

As shown in FIG. 3A , in one embodiment, the anti-glare layer 32 can be disposed on the glass cover (protective layer 31) by spraying. In one embodiment, “spraying” is, for example, applying a specific solution for forming the anti-glare layer 32 on a surface of the glass cover (protective layer 31) to generate a ridge structure on the surface, and then using high temperature to solidify the specific solution and the glass cover (protective layer 31) to form an anti-glare glass having the anti-glare layer 32. In one embodiment, the specific solution can be, for example, silicon dioxide (SiO2), but is not limited thereto.

In one embodiment, the anti-glare layer 32 formed by spraying may have a plurality of ridge structures, wherein the width w1 of each ridge structure (e.g., the distance between peaks or valleys of each ridge structure) may be between 5 and 20 microns, that is, 5um≦w1≦20um, and is not limited thereto. In one embodiment, the height h1 of each ridge structure in the Y direction may be between 0.1 and 0.5 microns, that is, 0.1um≦h1≦0.5um, and is not limited thereto. Thus, the anti-glare layer 32 may provide a good anti-glare effect.

As shown in FIG. 3B , in one embodiment, the surface of the glass cover plate (protective layer 31) can be roughened by etching, thereby producing an effect similar to that of the anti-glare layer 32. In one embodiment, “etching” is, for example, using an acidic substance to corrode a film layer on the surface of the glass cover plate (protective layer 31), thereby producing a concave structure on the film layer, thereby forming an anti-glare glass having an effect (concave) similar to that of the anti-glare layer 32. It can be seen that the structure of the embodiment of FIG. 3B can achieve an effect similar to that of the anti-glare layer 32 by etching the protective layer 31, so there is no need to have an actual anti-glare layer 32.

In one embodiment, the surface of the protective layer 31 may have a plurality of concave structures after being roughened by etching, wherein the width w2 of each concave structure (e.g., the distance between peaks or valleys of each concave structure) may be between 5 and 20 microns, that is, 5um≦w2≦20um, and is not limited thereto. In one embodiment, the depth h2 of each concave structure in the Y direction may be between 0.1 and 0.5 microns, that is, 0.1um≦h2≦0.5um, and is not limited thereto. Thus, the surface of the protective layer 31 may provide an anti-glare effect similar to that of the anti-glare layer 32.

4A and 4B are schematic diagrams of the structures of the protective layer 31 and the anti-glare layer 32 of another embodiment of the present application, respectively, and please refer to FIGS. 1A to 2C at the same time. FIGS. 4A and 4B can be used to illustrate the details of the anti-glare film formed by the covering film (protective layer 31) and the anti-glare layer 32.

As shown in FIG. 4A , in one embodiment, the cover film (protective layer 31) may have a hard coating layer 311, and the anti-glare layer 32 may be formed by mixing a specific particle material 312 into the hard coating layer 311 to generate a ridge structure and a recessed structure. In one embodiment, the hard coating layer 311 may have a maximum thickness h3 after generating the ridge structure and the recessed structure, and the maximum thickness h3 may be between 1 and 3 microns, that is, 1um≦h3≦3um, and is not limited thereto. In one embodiment, the type of the specific particle material 312 may include, for example, silicon dioxide particles, and is not limited thereto.

As shown in FIG. 4B , in one embodiment, the cover film (protective layer 31) may have a hard coating layer 311, and the anti-glare layer 32 may be formed by applying nano-imprinting technology on the hard coating layer 311 to generate a recessed structure on the hard coating layer 311. In one embodiment, the hard coating layer 311 may have a maximum thickness h4 after the recessed structure is generated, and the maximum thickness h4 may be between 1 and 3 microns, that is, 1um≦h4≦3um, and is not limited thereto.

Next, the details of the anti-reflection layer 33 are described. FIG5 is a schematic diagram showing the structure of the anti-reflection layer 33 of an embodiment of the present application, and please refer to FIG1A to FIG4B at the same time.

As shown in FIG5 , in one embodiment, the anti-reflection layer 33 may be formed by coating a plurality of film layers with different refractive indices on the surface of the anti-glare layer 32 using physical vapor deposition (PVD) technology. In one embodiment, the anti-reflection layer 33 may include a plurality of high refractive index sublayers 331 and a plurality of low refractive index sublayers 332, wherein the high refractive index sublayers 331 and the low refractive index sublayers 332 may be alternately stacked, for example, a low refractive index sublayer 332 may be disposed between at least two high refractive index sublayers 331, or a high refractive index sublayer 331 may be disposed between at least two low refractive index sublayers 332, and the present invention is not limited thereto. In one embodiment, the high refractive index sublayer 331 or the low refractive index sublayer 332 may include metal oxide or dielectric material, but is not limited thereto. In one embodiment, the outermost sublayer of the anti-reflection layer 33 in the display direction is the low refractive index sublayer 332, but is not limited thereto. In one embodiment, the total number of the high refractive index sublayer 331 and the low refractive index sublayer 332 is at least four layers, but is not limited thereto. Here, the refractive index of the high refractive index sublayer 331 is higher than the refractive index of the low refractive index sublayer 332, and the refractive index value of the high refractive index sublayer 331 is between 1.9 and 2.4, that is, 1.9≦the refractive index value of the high refractive index sublayer 331≦2.4. The refractive index value of the low refractive index sub-layer 332 is between 1.2 and 1.5, that is, 1.2≦the refractive index value of the low refractive index sub-layer 332≦1.5, and the present invention is not limited thereto.

In one embodiment, the anti-reflection layer 33 may be a non-smoke anti-reflection layer (non-smoke AR). In one embodiment, the material of the high refractive index sublayer 331 of the non-smoke anti-reflection layer may include niobium pentoxide (Nb2O5), but is not limited thereto. In one embodiment, the material of the low refractive index sublayer 332 of the non-smoke anti-reflection layer may include silicon dioxide (SiO2), but is not limited thereto. In one embodiment, the sublayer configuration of the anti-reflection layer 33 in the non-smoke anti-reflection layer state may be presented in Table 1. It should be noted that the parameters and the number of sublayers in Table 1 are only examples.

Table 1: Configuration of sublayers of non-smoked anti-reflection layer Thickness of the sublayer of the non-smoked anti-reflection layer (in nanometers) Low refractive index sublayer 332 (material: silicon dioxide) 86.7 High refractive index sublayer 331 (material: niobium pentoxide) 110.5 Low refractive index sublayer 332 (material: silicon dioxide) 36.00 High refractive index sublayer 331 (material: niobium pentoxide) 11.7 The following is a glass substrate (including an anti-glare layer 32 and a protective layer 31) Any configuration

In another embodiment, the anti-reflection layer 33 may be a smoked anti-reflection layer (smoke AR). In one embodiment, the material of the high refractive index sublayer 331 of the smoked anti-reflection layer may include a transparent conductive film (indium tin oxide, ITO), but is not limited thereto. In one embodiment, the material of the low refractive index sublayer 332 of the smoked anti-reflection layer may include silicon dioxide, but is not limited thereto. In one embodiment, the high refractive index sublayer 331 of the smoked anti-reflection layer has an extinction coefficient k, wherein the extinction coefficient k may be between 0.01 and 0.05, that is, 0.01≦k≦0.05, but is not limited thereto; in addition, the low refractive index sublayer 332 may not substantially have a light absorption property. In one embodiment, the configuration of the sub-layers of the anti-reflection layer 33 (smoked anti-reflection layer) may be presented in Table 2. It should be noted that the parameters and the number of sub-layers in Table 2 are only examples.

Table 2: Configuration of SARC Sublayers Thickness of the SARC sublayer (in nanometers) Low refractive index sublayer 332 (material: silicon dioxide) 84.2 High refractive index sublayer 331 (material: niobium pentoxide) 72.09 Low refractive index sublayer 332 (material: silicon dioxide) 14.14 High refractive index sublayer 331 (material: niobium pentoxide) 25.73 Low refractive index sublayer 332 (material: silicon dioxide) 134.55 High refractive index sublayer 331 (material: niobium pentoxide) 15.07 Low refractive index sublayer 332 (material: silicon dioxide) 27.56 High refractive index sublayer 331 (material: niobium pentoxide) 259.91 Low refractive index sublayer 332 (material: silicon dioxide) 24.96 High refractive index sublayer 331 (material: niobium pentoxide) 21.47 The following is a glass substrate (including an anti-glare layer 32 and a protective layer 31) Any configuration

In addition, in one embodiment, the reflectivity of the anti-reflection layer 33 may be between 3 and 6 percent, that is, 3%≦the reflectivity of the anti-reflection layer 33≦6%, and is not limited thereto. In one embodiment, the overall thickness of the anti-reflection layer 33 in the Y direction may be between 200 and 700 nanometers, that is, 200nm≦the overall thickness of the anti-reflection layer 33≦700nm, and is not limited thereto.

Next, the details of the backlight module 10 are described. FIG6 is a schematic structural diagram of the backlight module 10 according to an embodiment of the present application, and please refer to FIG1A to FIG5 at the same time.

As shown in FIG6 , the backlight module 10 may include a first diffusion sheet 11, a second diffusion sheet 12 and a light guide plate 13, wherein in the Y direction, the second diffusion sheet 12 may be disposed on the light guide plate 13, and the first diffusion sheet 11 may be disposed on the second diffusion sheet 12, that is, the first diffusion sheet 11 may be closer to the display panel 20 than the second diffusion sheet 12 and the light guide plate 13, and the present invention is not limited thereto. In one embodiment, the number of diffusion sheets of the backlight module 10 is at least two, and the present invention is not limited thereto. In one embodiment, in the Y direction, a brightness enhancement film 14 may be disposed above the first diffusion sheet 11, but the present invention is not limited thereto. In one embodiment, the brightness enhancement film 14 may be, for example, a dual brightness enhancement film (DBEF), but the present invention is not limited thereto.

Next, FIG. 7 is used to illustrate a schematic diagram of the viewing angle distribution of the backlight module 10 (eg, a display module equipped with the backlight module 10) or a display module (eg, a display module that is a self-luminous display module but not equipped with the backlight module 10), and please refer to FIGS. 1 to 6 at the same time.

As shown in FIG. 7 , the full width at half maximum (FWHM) of the brightness of the backlight module 10 or the display module corresponding to the viewing angle can be greater than 40 degrees, that is, 40 ^° ≦ FWHM, such as 45 degrees, but not limited thereto. Here, "full width at half maximum" refers to the angle difference between the viewing angle with half the brightness of the maximum brightness and the viewing angle of zero degrees.

Thus, the detailed features of the detailed components of the display device 100 of the present application can be understood.

In addition, the display device 100 of the present application may also have different configurations and applications. FIG8A is a schematic diagram of the display device 100 of another embodiment of the present application, and please refer to FIG1A to FIG7 at the same time. Some features of FIG8A can be applied to the description of the embodiments of FIG1A to FIG7, so the following mainly describes the differences.

As shown in FIG8A , the display device 100 may further include a photo sensor 40 and a controller 50. In one embodiment, the photo sensor 40 may be electrically connected to the controller 50, and the controller 50 may be electrically connected to the display panel 20 or the backlight module 10, but is not limited thereto. In one embodiment, the photo sensor 40 may be, for example, a blue light sensor for sensing the intensity of blue light output by the display device 100, so that the display device 100 may execute an eye protection mode; the blue light here may be, for example, light with a wavelength between 415 and 455 nanometers (415nm≦wavelength≦455nm), but is not limited thereto. In another embodiment, the display panel 20 is a self-luminous display panel, the backlight module 10 may be omitted, and the controller 50 may be electrically connected to the display panel 20.

Furthermore, in the eye protection mode, the display device 100 can adjust the blue light intensity by means of the software 60. For example, the software 60 can calculate an adjustment value according to the blue light intensity sensed by the light sensor 40, and transmit a control signal to the display device 100 through the controller 50, thereby adjusting the blue light intensity output by the display device 100. In one embodiment, the adjustment value can be, for example, to adjust the blue light intensity output by the display device 100 to between 60 and 90 percent of the normal blue light intensity (60% of the normal blue light intensity ≦ adjustment value ≦ 90% of the normal blue light intensity), but is not limited thereto. In one embodiment, the control signal can be, for example, used to adjust the gamma curve of the display device 100, but is not limited thereto. In one embodiment, the eye protection mode is suitable for use in the display device 100 for educational purposes or in applications that require long-term staring at the screen, but is not limited thereto.

The display device 100 of the present application may also have different configurations and applications. FIG8B is a schematic diagram of the display device 100 of another embodiment of the present application, and please refer to FIG1A to FIG7 at the same time. Some features of FIG8B can be applied to the description of the embodiments of FIG1A to FIG7, so the following mainly describes the differences.

As shown in FIG8B , the display device 100 may further include a second light sensor 70 and a controller 50. In one embodiment, the second light sensor 70 may be electrically connected to the controller 50, and the controller 50 may be electrically connected to the display panel 20 or the backlight module 10, but is not limited thereto. In another embodiment, the display panel 20 is a self-luminous display panel, the backlight module 10 may be omitted, and the controller 50 may be electrically connected to the display panel 20.

In one embodiment, the second light sensor 70 can be used to sense the brightness and/or color temperature of the ambient light, and the display panel 20 can adjust the brightness and/or color temperature according to the sensing result of the light sensor 40 to display the image information. In one embodiment, the adjustment can be implemented by the software 60, for example, the software can calculate the adjustment value according to the sensing result, and the controller 50 can transmit the control signal to the display device 100, and the control signal is used, for example, to adjust the gamma curve of the display panel 20, so as to adjust the brightness or color temperature of the light displayed by the display panel 20, but it is not limited thereto.

In one embodiment, the software can be configured to make the brightness and/or color temperature of the light displayed by the display panel 20 close to the brightness and/or color temperature of the ambient light. In one embodiment, the software can be configured to make the brightness and/or color temperature of the light displayed by the display panel 20 complementary to the brightness and/or color temperature of the ambient light. By means of the above two adjustment methods, the display device 100 is suitable for application in art exhibitions. For example, the display panel 20 can display the image information of a picture or an exhibit. By adjusting the brightness and/or color temperature of the light of the display panel 20 in accordance with the ambient light, the image information of the picture or exhibit displayed by the display panel 20 can be closer to the effect presented by the actual picture or exhibit under the ambient light, and the present invention is not limited thereto.

From the above description, it can be seen that the surface of the display device of the present application has a specially configured reflective layer and anti-glare layer, which can greatly eliminate mirror reflection light, thereby improving the visual effect.

In one embodiment, the present application can at least be judged by the presence or absence of components, component configuration and/or operation mode of the disputed product to determine whether it falls within the protection scope of the present application, or can be judged by the algorithm of the disputed product to determine whether it falls within the protection scope of the present application, but is not limited to this.

The features of the various embodiments of this application may be mixed and matched as long as they do not violate the spirit of the invention or conflict with each other.

The above embodiments are merely examples for the convenience of explanation. The scope of rights claimed by this application shall be subject to the scope of the patent application, and shall not be limited to the above embodiments.

100: display device 200: appearance part 10: backlight module 20: display panel 30: optical structure layer 30a, 200a: surface 31: protective layer 32: anti-glare layer 33: anti-reflection layer w1, w2: width h1, h2, h3, h4: height 331: high refractive index sublayer 332: low refractive index sublayer 11: first diffusion sheet 12: second diffusion sheet 13: light guide plate 14: brightness enhancement film 40: light sensor 50: controller 60: software 70: second light sensor

FIG. 1A is a schematic diagram showing a display device of an embodiment of the present application in a hidden display state. FIG. 1B is a schematic diagram showing a display device of an embodiment of the present application in a normal display state. FIG. 1C is a cross-sectional view showing a display device of an embodiment of the present application. FIG. 2A is a schematic diagram showing a structure of a display device of an embodiment of the present application. FIG. 2B is a schematic diagram showing a structure of a display device of an embodiment of the present application. FIG. 2C is a schematic diagram showing a structure of a display device of an embodiment of the present application. FIG. 3A is a schematic diagram showing a structure of a protective layer and an anti-glare layer of an embodiment of the present application. FIG. 3B is a schematic diagram showing a structure of a protective layer and an anti-glare layer of an embodiment of the present application. FIG. 4A shows a schematic diagram of the structure of the protective layer and the anti-glare layer of another embodiment of the present application. FIG. 4B shows a schematic diagram of the structure of the protective layer and the anti-glare layer of another embodiment of the present application. FIG. 5 shows a schematic diagram of the structure of the anti-reflection layer of an embodiment of the present application. FIG. 6 shows a schematic diagram of the structure of the backlight module of an embodiment of the present application. FIG. 7 shows a schematic diagram of the brightness-viewing angle distribution of the backlight module or the display module of an embodiment of the present application. FIG. 8A shows a schematic diagram of the display device of another embodiment of the present application. FIG. 8B shows a schematic diagram of the display device of another embodiment of the present application.

100: Electronic devices

10: Backlight module

20: Display panel

30: Optical structure layer

31: Protective layer

32: Anti-glare layer

33: Anti-reflective layer

Claims (10)

A display device is used to be accommodated in an appearance piece, the appearance piece has at least one first color, the display device has a hidden display state and a normal display state, wherein the display device comprises: a display panel; and an optical structure layer, disposed on the display panel, the optical structure layer comprises an anti-glare layer and an anti-reflection layer, the anti-reflection layer is disposed on the anti-glare layer, and the gloss difference between the optical structure layer and the appearance piece is less than 10 gloss units (GU); wherein, in the hidden display state, the display panel displays at least one second color, the color difference between the second color and the first color is less than 3, and in the normal display state, the display panel displays an image information. A display device as described in claim 1, wherein a surface of the optical structure layer and a surface of the appearance member are substantially on the same plane. A display device as described in claim 1, wherein the glossiness of the optical structure layer is between 4 and 35 GU, and a reflectivity of the optical structure layer including specular regular reflected light is between 3 and 6 percent. A display device as described in claim 1, wherein the glossiness of the optical structure layer is between 4 and 30 GU. A display device as described in claim 1, wherein the glossiness of the optical structure layer is between 4 and 20 GU. A display device as described in claim 1, wherein the transmittance of the optical structure layer is between 70 and 95 percent. A display device as described in claim 1, wherein the anti-reflection layer includes a plurality of high refractive index sub-layers and a plurality of low refractive index sub-layers stacked alternately. The display device as described in claim 1, wherein the display device further comprises a backlight module disposed below the display panel, and the backlight module is a local dimming backlight module. A display device as described in claim 1, wherein the display device further includes a light sensor, which is used to sense the brightness of ambient light, and the display panel adjusts the brightness according to the sensing result of the light sensor to display the image information. A display device as described in claim 1, wherein the display device further includes a light sensor, which is used to sense the color temperature of ambient light, and the display panel adjusts the color temperature according to the sensing result of the light sensor to display the image information.

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